Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers



Laser Pointer Store

Why do people call 635nm orange?

LazyBeam

New member
Joined
Jun 12, 2010
Messages
446
Likes
31
Points
0
I see in quite a few person's signatures that their 635nm lasers are written in orange lettering. I finally got to see 635nm a day or two ago and I though it was a very crisp red color. Sure, it's a touch lighter than 650... but it was WAY closer to red than to orange. At BEST, it could be called red-orange. I think it's like alot of people calling 445nm blue (it's really a little to violet to be "blue").

I thought that 615nm was a very SOLID orange color... 605-610nm being a little closer to marigold and 620nm being closer to a darker orange.

Just my observations.
 

daguin

New member
Joined
Mar 29, 2008
Messages
16,636
Likes
622
Points
0
Most "knowledgeable" laserists do NOT call 635nm "orange." It is "orangeISH red" at best.

People just want some way to delineate between their 660nm laser and their 635nm laser.

I suggest YOU do better than they and do NOT call your 635nm laser "orange." I don't ;)

I DO call my 612nm HeNe "orange." :D

Peace,
dave
 

DTR

Well-known member
LPF Site Supporter
Joined
Jun 24, 2010
Messages
5,612
Likes
956
Points
113
I put together an 11mW red the other day and I have to say my eye's can not see a difference with 650.

On the left is the 11mW 635nm and on the right is my O-Like 200mw 650nm. I think the power difference also has some effect on what color the camera is picking up.
 

styropyro

New member
Joined
Jun 13, 2007
Messages
5,385
Likes
477
Points
0
Because it makes their signatures look cooler when they don't have real exotic colors. ;)
 

lasersbee

Well-known member
Joined
Sep 20, 2008
Messages
17,447
Likes
1,554
Points
113
Because it makes their signatures look cooler when they don't have real exotic colors. ;)
I think I know what you mean...
Perhaps I should call my 445nm... Baby Powder Blue....:whistle:
Nahhh... sounds a little fruity...:crackup:

Jerry
 

Vaporizer

New member
Joined
Aug 6, 2010
Messages
382
Likes
25
Points
0
Baby Powder Blue? :crackup:
Dang, I bought 2 635nm diodes from Modwerx on my last order to have an Orange as I've read. Guess not.........:cryyy:
I did see that the more current you deliver them the frequency goes up. Some as high as 650nm? ie...5mw = 638.5nm & 7mw = 648nm.
I still have a few cheap red <5mw pointer I'll stick one into. I'll just set the current to 5mw and imagine it as Tutti Fruiti Orange.:whistle:
 

daguin

New member
Joined
Mar 29, 2008
Messages
16,636
Likes
622
Points
0
Here ya go:



Does 635nm look "orange" to you?

Here is 612nm vs. 632nm



Once you see an orange laser, you will have no problem calling 635nm "red."

Peace,
dace
 
Joined
Jan 11, 2008
Messages
673
Likes
37
Points
0
I put together an 11mW red the other day and I have to say my eye's can not see a difference with 650.

On the left is the 11mW 635nm and on the right is my O-Like 200mw 650nm. I think the power difference also has some effect on what color the camera is picking up.
Most cameras don't have enough color gamut to clearly see the difference anyways. The power difference only compounds the problem.

Personally I call 635nm red and 650nm deep red.
 

Vaporizer

New member
Joined
Aug 6, 2010
Messages
382
Likes
25
Points
0
Well......If I can tell its less red I won't be to disappointed. Maybe set it at the min on threshold current and squint? :undecided:
Ever feel like a cig butt that just hit the ground and someone decided to grind their foot on it to put it out? :( sigh.........lol
OMG...according to that pic Dave, those 780's I read abt are black lasers! :crackup:

Laser_freak, I'd have to agree with you the 650nm looks more orange in a pic at that mw.
 
Last edited:

daguin

New member
Joined
Mar 29, 2008
Messages
16,636
Likes
622
Points
0
Well......If I can tell its less red I won't be to disappointed. Maybe set it at the min on threshold current and squint? :undecided:
Ever feel like a cig butt that just hit the ground and someone decided to grind their foot on it to put it out? :( sigh.........lol
OMG...according to that pic Dave, those 780's I read abt are black lasers! :crackup:

Laser_freak, I'd have to agree with you the 650nm looks more orange in a pic at that mw.
Most people simply say that 635nm looks "brighter" than 650nm

780nm isn't "black." It is, however, firmly infrared. It is "near" infrared, but it is officially infrared.

Dave that 612nm is sweeet. Looks goldish to me. What is that like a 5mW unit you got there?
This one is putting out about 4mW

Peace,
dave
 

Vaporizer

New member
Joined
Aug 6, 2010
Messages
382
Likes
25
Points
0
I know Dave....I thought the crackup at the end would show the joke. Guess not.
I'll work on my communication skills.
That is a visible light spectrum chart.
 

daguin

New member
Joined
Mar 29, 2008
Messages
16,636
Likes
622
Points
0
I know Dave....I thought the crackup at the end would show the joke. Guess not.
I'll work on my communication skills.
That is a visible light spectrum chart.
It is not your skills. The written word just lacks info (para-language, context, and sub-text).

I saw the joke, but saw it as a laugh at the graph :yabbem:

Maybe I've just gotten callused by answering/reading questions from NooBs about black and brown lasers :banned:

Peace,
dave
 

Hemlock_Mike

Well-known member
Joined
Jan 7, 2007
Messages
6,275
Likes
313
Points
83
Everyone has different color perception to ther eyes. To me, I can see the difference between 635 and 660. 635 has a bit of yellow in it but we call it red as we did with HeNe, the original benchmark for a red laser. We are witnesing now many wavelengths which we try to say is RED or BLUE or whatever.
Get used to it and learn nM.

HMike
 

FireMyLaser

Well-known member
Joined
Jan 12, 2008
Messages
3,059
Likes
144
Points
63
635nm is orange-red to me, I wouldn't call it "red" and I wouldn't use it as red in a RGB setup. 445nm diodes should in fact be called indigo or royal blue, it's not true a blue, but definitely not violet either. I also wouldn't use 445nm in a RGB setup, I'd much rather use 460nm, but that is not an option so 445nm it is :undecided:. Not bad though.
 




Top